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What is a Root Canal and Why is it Needed?

A root canal is a dental procedure performed to remove the infected or damaged pulp (the soft tissue inside the tooth that contains nerves and blood vessels) and to clean and seal the inside of the tooth. The objective is to save the tooth and prevent the need for extraction.

Root canal treatment is often required due to deep decay, a cracked or broken tooth, repeated dental procedures on the same tooth, or a deep filling that has damaged the tooth. The goal is to prevent the spread of infection to other teeth or other parts of the body.

Symptoms That May Suggest a Root Canal is Needed

It is important to see a dentist immediately if you experience any of these common warning signs:

  • CheckmarkSevere toothache or pain when chewing or applying pressure.
  • CheckmarkSensitivity to hot or cold temperatures that lingers after the stimuli have been removed.
  • CheckmarkSwelling, tenderness, or redness in the gums near the affected tooth.
  • CheckmarkA small bump or pimple on the gums (indicating an infection/abscess).
  • CheckmarkDarkening or discolouration of the affected tooth.
Symptoms requiring root canal treatment

What Should You Know Before Having a Root Canal?

  • Pain & Comfort: Root canal procedures are often associated with pain, but your dentist will use local anaesthesia to numb the area, meaning you should feel pressure, but no pain during the treatment.
  • The Procedure: The treatment involves removing the damaged pulp, carefully cleaning and shaping the inside of the tooth, and then filling and sealing it with a rubber-like material.
  • Aftercare: Following the procedure, avoid biting or chewing on the area for a few days. You may experience some sensitivity, but this should subside within a few days.
  • Alternative Treatment: In some cases, an alternative like a dental crown or extraction may be available. Your dentist will advise you on the best course of treatment for your specific situation.

Root Canal Procedure Steps

Diagnosis & Access

X-rays are taken, and an opening is made in the crown of the tooth to access the pulp chamber.

Pulp Removal

The infected or damaged pulp is removed from the chamber and the root canals.

Cleaning & Shaping

The canals are meticulously cleaned, disinfected, and shaped in preparation for filling.

Filling & Sealing

The cleaned canals are filled with a biocompatible material and sealed to prevent re-infection.

FAQs

Your concerns, answered clearly and honestly.

What happens after the root canal treatment?

After treatment, the tooth is usually protected with a dental crown to restore strength and function.

How long does a root canal–treated tooth last?

With proper oral hygiene and regular dental check-ups, a root canal–treated tooth can last many years or even a lifetime.

Is it better to extract the teeth instead?

Saving your natural teeth is always preferred. Root canal treatment preserves the tooth and maintains proper alignment and chewing function.

How do I know if I need a root canal?

Common signs include severe toothache, prolonged sensitivity to heat or cold, gum swelling, tooth discolouration, or pain while chewing.

How long does a root canal treatment take?

A root canal typically takes one to two visits, depending on the severity of the infection and the condition of the tooth.

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